Remove default param from mapPartitions

1 files changed, 1 insertions, 1 deletions

diff --git a/core/src/main/scala/org/apache/spark/api/java/JavaRDD.scala b/core/src/main/scala/org/apache/spark/api/java/JavaRDD.scala
index 52265bbf4d..e7b1ceebf6 100644
--- a/core/src/main/scala/org/apache/spark/api/java/JavaRDD.scala
+++ b/core/src/main/scala/org/apache/spark/api/java/JavaRDD.scala
@@ -145,7 +145,7 @@ JavaRDDLike[T, JavaRDD[T]] {
    * Return a new RDD by applying a function to each partition of this RDD.
    */
   def mapPartitions[U](
-      f: JFMap[JIterator[T], U], preservesPartitioning: Boolean = false): JavaRDD[U] = {
+      f: JFMap[JIterator[T], U], preservesPartitioning: Boolean): JavaRDD[U] = {
     rdd.mapPartitions[U]((x => f(asJavaIterator(x)).iterator), preservesPartitioning)
   }